At our office the handyman showed me once how AMAZING caustic soda and boiling water is to clear a blocked drain.
Since giving birth my hair has been falling out and though we've both tried to keep on top of it, the bath/shower has become pretty blocked and gungey. Supermarket/Homebase unblockers haven't helped at all.
Is caustic soda safe to use at home? And where would I get it from?!